Hey there loverboy! There is nothing like a long sleeve t-shirt, you can wear them 3 out of the 4 seasons and this one has a really great fit. • 100% cotton • Sport Grey is 90% cotton, 10% polyester For a looser fit buy one size up Size Guide: (in Inches) Chest | Length | Sleeve-Length from center back S: 34-37 | 28 | 33¹⁄₂ M: 38-41 | 29 | 35 L: 42-45 | 30 | 36 XL: 46-49 | 31 | 38 2XL: 50-53 | 32 | 39 ¹⁄₄ 3XL: 54-57 | 33 | 39 ¹⁄₄ 4XL: 58-61 | 34 | 40 5XL: 62-65 | 35 | 40 ¹⁄₂